Cylinder-lubricator.



I'. B. HBBARD. CYLINDER LUBRIGATOR.

APPLICATION FILED JUNE 21,1909.

and associated parts,

lsarily shown herein.

or lower end said cylinder is itllli FRANK- B. HUBBARD, OF'MIEDDVLEFXELD, Qli.

CYLINBIEB-LUBRCATQR.

eieigees.

lSpecification of Letters Patent.

Application lled June 21, 1909. Serial to. ,5cl-'Balie To alt'whom 'it may concern:

Be it known that I, FRANK B. Hussein), citizen of thel United States, residing at Middlelield, in the county of Geauga and State of Ohio, have invented certain new and useful Improvements in bricators, cation.

My invention relates-to improvements in cylinder lubricators, and the invention is shown in this instance'in a singlesectional elevation of a combined piston and cylinder as hereinafter fully departicularly pointed out in the of which the following is a specifiscribed and claims. l

C represents the cylinder of the engine and P is what is known in this articular engine as the power'piston, and in the operation the heated air enters the cylinder C. through an o ching 3 in the top and side thereof, a suitable pipe connection being provided for said opening but-not neces- Said piston is preterably made ot suitable casting and also preferably with a head having a central openino' covered from the inside by a ca 16 secure thereon by screws, and the sai Kcap has a rounded hub 18 on its bot-torn providing la bearing for the Wrist pin 19 which `carries the piston rod or pitinan 26. At its opposite a bottom E bolted about its edge to the end of the cylinder and provided with an opening through its center about which 'there is a tubular extension l5 approximately onethird the entire interior depth of the cylinder and of a Width suliicient to give the piston rod 26 all the throw it requiresto operate the piston, assuming that the said rod has the usual crank or eccentric connection at its other end. `The said bottoni E is shown in thisl instance as being atlixed by bolts directly to the edge of the cylinder G, but it might be differently constructed and make a diherent conection with said cylinder and serve the saine purposeE the only necessity being that the connection should be a close one s that it will be luid tight in its "oint with the cylinder. This construction avitords an annular space between the tubular extension l5 and the wall of the cylinder into which the piston is adapted to di or run approximately to the bottom thereo and has movement in the cylinder corresponding substantially to the depth of said. tube l5. lt follows therefore that the lower end of the provided with oil is carried outside the said tube by the piston. l l

Piston lJe is further provided with separate and sufficient packing rings ld abouti bothend portions, said rings being alike in all cases and recessed attheir respective edges to receive felt or equivalent packing 20, thus making the piston perfectly iuid tight about its side next to the cylinder and at the saine time giving it the requisite :treedom ot' action in the cylinder. To this end, also, suitable circular rings or follower plates 2Q are provided to cantine said paching 4rings and packing and these are se cured to the ends ci' the piston by means of screws 24. l

ln engines ot this kind it is ot importance that all the parts be well lubricated, and in order to eect such. lubrication and make it automatic,V l equip the head of the piston with a tube Q5 which is screwed into said head and extends down through the saine to the bearing; inside thereot1 at which vpoint it intersects with a small duct cr channel 2l in said hub or bearing to conduct oil to the "wrist pin 19 and keep the saine thoroughly lubricated at all times. The said tube Q5 is removably lined into said head and recipro- .cates with the saine through. the head of the cylinder, and in order to supply oil to said tube, l aiuti a tubular casing to the cylni der head l'. about the tube. S25 and which ei;-

tends above the said tube sonic distance v .and is adapted to receiveoil from the oil receptacle 30 mounted upon the top thereof. The said receptacle or cup receives the supply ot oil, and lubrication proceeds theretrom and from op threugh'the 'tube casing.

28 in such measure as thewr'ist pin and bearingr therefor may require, and any surplus oil is naturally thrown egainst the inner well oit t e piston and runs down the saine withinthe tube 'l5 at the base into the annular space into which it receives lubrication as against the wall of the. cylinder. Thus by means ot First. oilinrl the wrist pin and ton bearing thereon :l ein the outside I effect the oilinsi' ot 'the entire engine in all its parts.

llhat l claim l. The .combination oit the cylinder having one closed and one open end and a tubular projection on said cylinder entering said open end from beneath, in combination with retreated een ilario; i

a ston between said projection and the wall 0 said cylinder and having packings at both ends, a pinna-n having a bearing in the head of said piston and a lubricating tube fixed bearing and adapted to slide in the head o* said cylinder.

2. In hot air envines, a power piston having one closed and one open end and puck- 10 ing rings about both ende, in combination with a cylinder having an open end and a, receptacle about the inside of said end adapted to hold oil, a pitman extending through sald open end and having a hearing on the x5 head of said piston, and an oil duet through said head to said hearing.

3. In hot au' engines, a power plston having a closed end and an open end reaped l tively and packing rings about each end,-in eon'ibination with a cylinder having an open end correspon*ding` to the open end of said piston and a tubular projection in Said end provided with a supporting flange engaged with the bottom edge of said cylinder and cylinder and Said tubular projection, and a piston rod extending through said tubular projection and engaged with the hea d of Said piston.

ln teetimony hereof I aflix my Signature in presence of two witnesses.

FRANK B. HUI-,BRD. Wi iinesses Fl. M. Finnen. lf. C. Monsun.

i fluid tight'. therewith`r and the said piston 2:, adapted to Work between the Wall of said 

